Power supply apparatus



FIG. 1 is a top view of an power supply apparatus, showing my newdesign;

FIG. 2 is a side view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an another side view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective view thereof.

CLAIM I claim, the ornamental design for an power supply apparatus, asshown and described.